Movable element for meters



D. 1. ANGUS.

MovABLE ELEMENT FOR METERS.

APPLICATION FILED JUNE 26, 1920. 1,425,229.

Patented AugQS, 1922 2 SHEETS-SHEET l.

D. 1. ANGUS.

MOVABLE ELEMENT FOR METERS.

APPLICATION FILED JUNEZB, 1920.

Patented Aug. 8, 1922.

2 SHEETS-SHEET 2.

@Hoz n m94 DONALD?. ANGUS, OF INDIANAPOLIS/INDIANA.

MOVAELE ELEMENT Eon METERS.

To aZ-Z who/m. it may concern.'

. Be it known that I, DONALD J. ANGUS, a

citizen of the United States, residing at 1ndianapolis, in the county of Marion and State of Indiana, have invented a new and \use1"ul Movable Element for Meters, of which the following is a speciiication. l

It is the object of my invention to p'rovide an improved construction and mounting of the movable element of a meter, -and of the marking device controlled thereby.

The general arrangement of the meter and the structure of the stationary element form the subject-matter of my 'co-pending application Ser. No. 235,573, the two-point suspension of the movable element on the torsion wire forms the subject-matter of my co-pending application Ser.n No. 235,57 4, and the structure of the movable meter element and the details of its 'mounting on the vtorsion wire form the subject-'matter of my ce1-pending application Ser. No. 235,572', all three of which applications were filed May 20, 1918.

The present ap lication is a division of said application er. No. 235,572; and relates to the details of the pen and its mounting.

invention as yapplied to an electric meter. Fig. -1 is a vertical section through an electric meterembodying my invention; Fig. 2 is a horizontal section, with some parts Fig. 3 is a vertical section on a larger scale, in partial elevation, through the working elements of the meter, with the: central part broken away; Fig. 4 is a perspective on a larger scale of the mounting of the supporting staff of the movable element of the torsion wire; Fig. 5 is a longitudinal sectional detail of this staff and wire, with the parts broken away to allow the use of a still larger scale; Fig. 6 is a perspective view of the ref .movable pen; and Fig.7 is a perspective detail of the clip by which the pen is supported on the main supporting staii'.

The main casing 10 of the meter is divided by a vertical partition 11 into a front compartment 12 containingthe record-making p-arts and the rear compartment `13containing the metering parts. The metering parts and the. record-making parts are all supported on the partition 11. The rear compartment 13 is closed by a removable back 14;' and the front4 compartment is The accompanying drawings illustrate -my Specification of Letters Patent. Patented Ahllg. 8, 1922.

Original application iiled May 20, 1918, Serial No. 235,572. Divided and this application led June 26,'

1920. Serial No. 392,038.v

closed by a hinged front i cover plate` 15 which formsthe front, sides, and top of such compartment and has windows 16 and 17 of glass or other transparent material in front and top.

Suitably' mounted in the front compartment 12 are a supply roll 22 and a winding roll 23 of ia record sheet 24; which'passes over suitable guides 25 and 26 and a feed roller 27, so that it has a horizontal portion visible thro-ugh the top window 17 and on which the record is made by a pen 28, and

a, vertical portion on which the most recently made part of the record is visible through the front window 16. The pen 28 carries a pointer 29 which moves over an indicating scale 30, so that visual indication of the instantaneous condition being measured is given. The record sheet is driven in anysuitable manner, as by clockwork, preferably enclosed in a casing 31 mounted within the comp-artment 12. This driving means operates the winding roll 23 and the feed roller 27 in any suitable manner.

Mounted within the compartment 13 on the partition 11 is the stationary non-magnetic frame 35 of the metering parts of the meter. This frame in the electric meter shown carries in any suitable manner the stationary coils 36` which produce the desiredmagnetic el'd. At its upper end the frame 35 is providedl with an ink well or cup,

through an arc-shaped slot 38 in the cover 39 of which the rear end of the pen 28 dips tofeed the pen by capillary action. Fastened to the lower end of the frame 35 there is a liquid-holding cup 40, into which a partition 41 from the frame 35 projects downwardly to form a baile plateretarding the liquid movement therein.A Suitably mounted in the lower'endof this partition 41 is a disk 42 which in turn carries a split screw plug 43 for supporting the lower end of the torsion wire 44 on which the movable element of t-he meter is carried. The upper end ofthe torsion wire is correspondingly mounted in a disk 45 spring-pressed upwardly by a lsprin 46 within a hollow plug 47. `This plug 4g( has a screw-threaded mounting within one end of an adjusting lever 48 and in a. pair of lock nuts 49, and

the adjusting lever 48 rests on a bridge 50 mounted on the upper end of the frame 35. The upper face of the 'disk 45 and the lower end of the screw plug 43 are recessed to receive rivets in which the ends of the torsion wire 44 are fastened. These rivets are preferably of the construction shown in my co-` pending application Ser. No. 235,572. By a similar washer and rivet an intermediate point of the wire 44 is fastened to but spaced rom the wall of the main supporting staff 56 which carries the movable element of the meter; so that at its intermediate point the torsion wire and said stafl` are rigid with eachother, and when the staff turns about its axis, along which the torsion wire lies, the parts of the torsion wire above and below this riveted point are twisted or untwisted. The details of this washer and rivet are set forth in my aforesaid co-pending application.

The staff 56 is a flattened tube with a longitudinal slot extending its'full length on conveniently made from a strip of sheet metal bent in the desired shape. In order j 'to hold the staff 56 in an' upright position on the wall 34, it is provided, referably at the upper end, with an integralp 57 which is bent down across the end of the staff and is provided with a hole 58 through which the torsion wire 44 extends. This provides a guiding support for the staff 56 on the wire 44 at apoint removed from the point of rigid attachment formed by the intermediate rivet 51. The general idea of mounting the movable element of the meterl on the torsion wire b this two-point-support-one point of rigid attachment and one guiding poin --forms the subject-matter of my co-pending application Ser. No. 235,574.

`Mounted on the staff 56,in a manner im.

material to the present application but preferably in the manner set forth in my eopending application Ser. No. 235,572, are the movable coils 61 of the meter. In the meter shown there are two pairs of said movable coils, each air -acting as a unit and co-operating witli one pair` of the stationar coils 36, of which there are also two pairs s own;

but the number of sets of co-operating coils 4may be anything desired. All the sets act.

correspondingly-to produce a deflection of the movable element of the meter.

A sheet metal clip 75 (shown in detail in Fig. 7) is mounted on the upper end of the main supporting staff 56, for carrying the pen 28. This sheet metal clip 75 has\two u-p- Wardly extending arms 76 in which there are registering slots 77, the plane determined by these slots 77 being displaced forwardly from the torsion wire 44, as is clear from Fig. 3. The slots 77 vreceive a knife blade 78 on which is mounted a n carrier 79. This pen carrier has attache tol it at its forward end the pen 28, by a pair of fingers 80surrounding the tubular body of the pen clear from Fig. 6). To the rear of the guide fingers: lfe

blade 78, the pen carrier 79 has a curved ofset portion 81 where it passes the torsion wire 44, so that it will not interfere with such torsionV wire; and beyond such offset portion is provided with a rearwardly projecting screw 82 on which is screw-mounted a counterweight 83, which may be adjusted to control the vertical position of the marking end of the pen 28` and its downward pressure on the record sheet. The pen unit, comprisingthe pen l28 proper, the pen carrier 79, and its supporting knife blade 78, may readily be removed by lifting the knife blade 78 from the slots 77. Such removal is desirable for convenience and protection in 4shipping and installing the meter, and in done by providing the outer end of the a justing lever with a fork 85, through which an adjusting screw 86 projects. This adjustmg screw is provided with a slotted nut87 which co-operates with the'fork 85, so that when the screw 86 is turned the nut 87 and therefore the outer end of the adjusting lever 48 are moved to vary the circumferential position of t-he upper end of the torsion wire 44. Preferabl the screw 86 extends through the partitlon 11, and is provided in the front compartment 12 with a knurled head 88, whereby it may be operated, the screw being held in proper position with relation to the partition 11 by the head 884and a pair of lock nuts 89 in the compartment 13.

What I claim is l. 'In a meter, a torsion wire, a movable meter element mounted on said wire, a record sheet, and a marking device mounted on and freely removable from said movable meter element and co-operating ywith said record sheet.

2. In a meter, a torsion wire, a movable meterelement mounted on said wire, a pair of knife blade supports carried by said movable meter element, a knife blade removably resting on said knife blade supports, a marking device mounted on' said knife blade, and a record sheet co-operating with said marking device.

v3. In a meter, amovable meter element,

an ink well, a pen support removably mount- Y ed on said movable meter' element, a pen carried by said pen support and having a feeding end dipping into said ink well for capillary feed therefrom, and a record sheet -with which the marking end of said pen cooperates, said pen and" pen support-being freely removable as a unit from said movable meter element and said ink well.

4. In a meter, a movable meter element, a

end co-operating Withsaid record sheet, an

said pen and knife blade being fi'eely removable as a unit from said ink Well and saidI knife bla-de supports.

5. In a meter, the combination .of a movable element mounted for movement about an axis, a record sheet, and a pen pivotally mounted on 'said movable element on an axis `transverse to the axis of said movable element and freely removable therefromy and cooperating withy said record sheet.. l J 6. In a meter, the combination of a movable element mounted for movement about an axis, said movable element being pro,

vided With 'a pair of knife blade supports transverse to its axis, a knife blade removably resting on said knife blade supports, a pen carried by said knife blade, and a record sheet eo-operating With said pen.

' 7. In a meter, the combination of a movable element mounted for movement about an axis, a record sheet, a pen pivotally mounted on said movable element on an axis transverse to the axis of said movable element and freely removable therefrom and co-operatingvvith said record sheet, and an adjustablecounter-balance on said pen to permit adjustment of the force With which it engages the record sheet. l 8. n a meter, the combination of a movable element mounted for movement about an axis, said movable element being provided with a pair of knife blade supports transverse to its axis, a knife blade removably resting on said knife blade supports, a pen carried by said knife blade, a record sheet co-operating with said pen, and an adjustable eounter-balance on said pen to permit adjustment of the force with which it engages the reoord sheet. i

9. In a meter, a torsion Wire supported at both ends, va movable meter element mounted on said Wire, a record sheet, and a marking device mounted on and freely removable from said movable meter element and cooperating With said record sheet.

f 10. In a meter, a torsion Wire lsupported at both ends, a movable meter element mountedkm said Wire, a record sheet, and a lmarking deviceico-operating with said record sheet and controlled by said movable meter element.

` ll. In a meter, a movable meter element' `movable on a substantially vertical axis; a

record sheet; a stationary ink Well; anda pen mounted on and freely removable from said movable meter element, co-operating With said record sheet, and supplied from said ink Well. f

12. In a meter, a movable meter element; l

a record sheet; an ink Well; a pair/of knife blade supports carried by said movable meter element; a knife Vblade removably resting on said knife blade supports; and a. pen mountedon said knife blade', co-operating with said record sheet, and supplied from said ink Well.

In witnessvvhereof, I have hereunto set my hand at Indianapolis, Indiana, this twenty-fourth day of June, A. D. one thousand nine hundred and twenty.

ADONALD J. ANGUs. 

